Two easy modifications (no brainers) that made my life easier.
I changed out the Coleman 48 cooler with an Igloo 54 cooler. Its a little snug but it holds more and stays a lot cooler. If you slide the right handle in halfway first it helps.
I changed the 135 PortaPotti with a 155sl. The holddown holes are the same but the bracket is slightly different. The holding tank is 2/3 bigger so it doesn't have to be emptied nearly as often. This does require trimming the wetlocker door on the lower right hand corner slightly but its worth it.